The RCMP confirm the force has launched a criminal investigation into Wright’s payment to Duffy. The news breaks after ethics commissioner Mary Dawson announces she has suspended her own probe so that another investigation could proceed. Key quote: Andrew MacDougall: “The Prime Minister’s Office has not been approached by the RCMP. We would provide any possible assistance if asked.”http://o.canada.com/2013/06/13/mike-duffy-scandal-ethics-probe-into-nigel-wright-suspended/

Tkachuk tells the Senate there was “no whitewash” of Duffy’s final audit report from his committee. Critical language appearing in Harb and Brazeau’s reports was removed from Duffy’s because his expenses had been repaid. Key quote: Sen. David Tkachuk: “If I had received a cheque from Sen. Brazeau and Sen. Harb, their reports might have been a lot different as well.”

Duffy suggests there be public hearings into his expense claims. Key quote: Mike Duffy: “I think Canadians have a right to know all the facts and I’m quite prepared, in the right place and time, to give them the whole story.”

Duffy resigns from caucus over reports he charged the Senate for expenses while campaigning for the Tories in the 2011 election. Key quote: Mike Duffy: “It is clear the public controversy surrounding me and the repayment of my Senate expenses has become a significant distraction to my caucus colleagues and to the government.”

Harper’s office confirms chief of staff Nigel Wright wrote Duffy a personal cheque of more than $90,000 to cover the repayment of expenses after a CTV report the night before detailing a backroom deal between the two men. That report also raised questions that the money was part of a “whitewash” of Duffy’s final committee report, which went easy on the Conservative senator. Key quote: Andrew MacDougall, Harper spokesman: “Duffy was unable to make a timely repayment. Mr. Wright therefore wrote a cheque from his personal account for the full amount owing so that Mr. Duffy could repay the outstanding amount.”

Conservatives in the House of Commons, responding to questions about the Senate audit, praise Duffy for repaying his expenses. Key quote: Peter Van Loan: “He showed the kind of leadership that we would like to see from Liberal Sen. Mac Harb, who instead is taking up arms against the Senate, saying that he should not have to pay back inappropriate funds.”

Duffy's audit is released. Letters emerge suggesting Tkachuk, the committee chairman, spoke with Duffy about per diems Duffy claimed while in Florida. Key quote: David Tkachuk: “I in no way gave him a heads-up about the audit prior to his repaying of expenses, given that he had already repaid the expenses when our conversation took place.”

Duffy publicly says he will repay his living expenses, saying he may have made a mistake in declaring his primary residence in P.E.I. Key quote: Mike Duffy: “The Senate rules on housing allowances aren’t clear, and the forms are confusing. I filled out the Senate forms in good faith and believed I was in compliance with the rules. Now it turns out I may have been mistaken.”

Duffy tells reporters in Prince Edward Island that he rents a second home in Charlottetown during the winter, explaining why his Cavendish, P.E.I., residence appears to have no one living there. He has previously said he spent $100,000 on the Cavendish property to make it a year-round home. Key quote: Mike Duffy: “Canadians know I’m an honest man and I wouldn’t cheat on my expenses.”

Sen. David Tkachuk visits room 204 in Langevin, arriving at 1:41 p.m. ET, leaving at 2:05 p.m. ET. He is there to brief Wright on Duffy’s spending audit. It is the only time the two men talk face-to-face about Duffy’s audit, Tkachuk will later say. About 20 minutes after Tkachuk leaves Langevin, Sen. Irving Gerstein arrives. He also visits room 204. Gerstein arrives at 2:24 p.m. ET and leaves at 4:28 p.m. ET.

The Ottawa Citizen’s Glen McGregor reports that Duffy had unsuccessfully tried to expedite his application for a Prince Edward Island provincial health card. This report is verified by RCMP court documents outlining multiple calls Duffy's office made to the office of the P.E.I. health minister in late 2012.